Mike O'Callaghan - Pat Tillman Memorial Bridge (Mohave County, Arizona)Opened on October 19, 2010 as a bypass route for Hoover Dam and for the Dept. of Homeland SecurityOpen-spandrel arch bridge over Colorado River on US 93Open to traffic

Old US 93 Bridge (Mohave County, Arizona)Bypassed in 2010Concrete stringer bridge over White Rock Canyon on Arizona Hot Spring TrailOpen to pedestrians only

Perrine Bridge (Twin Falls County, Idaho)Built 1976Steel arch bridge over Snake River on US 93 at Twin FallsOpen to traffic

Salmon Bridge (Lemhi County, Idaho)Built 1926; rehabilitated 1964Concrete arch bridge over Salmon River on US 93 in SalmonOpen to traffic

Silver Bridge (Ravalli County, Montana)Built 1940Through truss bridge over Bitterroot River on US 93 in Hamiltonreplaced by a new bridge